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    Trunks and branches of trees withstand stresses through load-adaptive growth.
    Maintain physical integrity -->
    Manage structural forces --> Manage tension --> Lightweighting: Scots pine

    Anchors of bull kelp protect it from torque by being flexible.
    Manage physical integrity --> Manage structural forces --> Mechanical wear --> Flexible anchors: bull kelp
    Delisea pulchra protects itself from bacterial infection by exuding compounds that inhibit biofilms.
    Maintain physical integrity --> Protect from biotic factors --> Protect from microbes --> Furanones: red alga
    Photosynthesis in plants converts solar energy to chemical energy by splitting water to release hydrogen.
    Get, store, or distribute resources --> Capture, absorb, or filter --> Capture energy --> Photosynthesis: Cooke's koki'o
    Wings of Morpho butterflies create color by diffracting and scattering light.
    Modify --> Modify physical state --> Modify light/color -->  Wing scale architecture: Morpho butterflies
    Grooves on spikes of thorny devil lizard provide drinking water by drawing condensed dew to mouth by capillary action.
    Get, store, or distribute resources --> Capture, absorb, or filter --> Capture water --> Capillary action: thorny devil
    Wing surface of Morpho butterfly sheds water and dirt via hydrophobic microstructure.
    Maintain physical integrity --> Protect from abiotic factors --> Protect from dirt/solids -->  Hydrophobic microstructure: Morpho butterfly
    Leaves of the sacred lotus are self-cleaning thanks to nanoscale bumps.
    Maintain physical integrity --> Protect from abiotic factors --> Protect from dirt/solids --> Nanoscale bumps: sacred lotus
    Mounds of macrotermitine termites maintain homeostasis through tunnels, chimneys, and use of wind creating pressure fields.
    Get, store, or distribute resources --> Distribute --> Gases -->  Pressure field: mound-building termites
    Eyes of nocturnal moths are anti-reflective due to nanoscale protrusions.
    Maintain physical integrity --> Protect from biotic factors --> Protect from animals Nanoscale protrusions: elephant hawk-moth
    Toucan beaks are built lightweight and strong thanks to a rigid foamy inside and layers of fibrous keratin tile outside.
    Maintain physical integrity --> Manage structural forces --> Manage impact --> Keratin tiles layered over rigid foam: toco toucan
    A metacarpal bone of a horse avoids structural weakness caused by a hole via stress-dispersing microstructure.
    Get, store, or distribute resources --> Distribute --> Energy --> Stress-dispersing bone microstructure: horse
    Skin of earthworms repels soil adhesion with a thin water film, created by electro-osmotic flow.
    Maintain physical integrity --> Protect from abiotic factors --> Protect from dirt/solids -->  Electro-osmotic flow: common earthworm
    Byssus threads of the blue mussel attach to a wet, solid surface due to catechols on adhesive proteins that overcome the surface’s affinity for water molecules.
    Move or stay put --> Attach --> Permanently -->  Catechols on adhesive proteins: blue mussel
    The skin of cuttlefish changes color rapidly, in order to evade predators, using elastic pigment sacs called chromatophores.
    Maintain physical integrity --> Protect from biotic factors --> Protect from animals --> Chromatophores: cuttlefish
    The stems of many plants may resist buckling by including transverse bulkheads that prevent ovalization.
    Maintain physical integrity --> Prevent structural failure --> Prevent buckling --> Transverse bulkheads: bamboo
    Leaves on a forest floor create aesthetically seamless surfaces by exhibiting organized chaos.
    Maintain community --> Provide ecosystem services --> Maintain biodiversity -->  Organized chaos: forest floor
    The flippers of the humpback whale channel flow and increase aerodynamic efficiency due to tubercles or bumps.
    Move or stay put --> Move in/on --> Liquids --> Bumps: humpback whale
    The soil ecosystem supports plant growth through interactions of millions of organisms that work together to break down chemicals and aerate the soil.
    Break down --> Physically break down --> Biotic minerals --> Community of organisms: soil ecosystem
    The circulatory system of humans prevents blood loss from wounds by sending platelets to block the hole.
    Maintain physical integrity --> Protect from abiotic factors --> Protect from loss of liquids --> Platelets: humans
    Honeybees in a colony select a new hive location via range voting.
    Maintain community --> Cooperate and compete --> Within the same species --> Range voting: honeybees
    Down feathers of geese insulate through special architecture.
    Maintain physical integrity --> Manage structural forces --> Manage extreme temperature -->  Special architecture: Canada goose
    Seaside arrowgrass facilitates plant diversity in salt marshes by creating elevated rings with its rhizomes.
    Maintain community --> Provide ecosystem services --> Maintain biodiversity --> Elevated rings: seaside arrowgrass
    Tails of bluefin tuna conserve energy by using thunniform swimming.
    Move or stay put --> Move in/on --> Liquids --> Thunniform propulsion: bluefin tuna